﻿#region Copyright(c) 2006 ZO, All right reserved.
// -----------------------------------------------------------------------------
// Copyright(c) 2006 ZO, All right reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   1.  Redistribution of source code must retain the above copyright notice,
//       this list of conditions and the following disclaimer.
//   2.  Redistribution in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//   3.  The name of the author may not be used to endorse or promote products
//       derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// -----------------------------------------------------------------------------
#endregion


#region Using directives

using System;
using System.Runtime.InteropServices;
using System.Security;

#endregion

namespace ZO.SmartCore.My4CSharp
{
    [SuppressUnmanagedCodeSecurity, ComVisible(false)]
    internal static class UnsafeNativeMethods
    {
        private const string User32 = "User32.dll";

        #region Constructors

        #endregion

        #region Destructor

        #endregion

        #region Fields

        #endregion

        #region Events

        #endregion

        #region Operators

        #endregion

        #region Properties

        #endregion

        #region Methods

        /// <summary>
        /// retrieves the status of the specified virtual key
        /// </summary>
        /// <param name="KeyCode">Specifies a virtual key</param>
        /// <returns>
        /// The return value specifies the status of the specified virtual key, as follows: 
        ///  If the high-order bit is 1, the key is down; otherwise, it is up.
        ///  If the low-order bit is 1, the key is toggled. A key, such as the CAPS LOCK key, 
        ///  is toggled if it is turned on. The key is off and untoggled if the low-order bit is 0.
        ///  A toggle key's indicator light (if any) on the keyboard will be on when the key is
        ///  toggled, and off when the key is untoggled.
        /// </returns>
        [DllImport(User32, CharSet = CharSet.Auto, ExactSpelling = true)]
        public static extern short GetKeyState(int KeyCode);

        /// <summary>
        ///  retrieves a handle to the top-level window whose class name and window name match the specified strings
        /// </summary>
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern IntPtr FindWindow(string className, string windowName);

        /// <summary>
        /// determines which pop-up window owned by the specified window was most recently active
        /// </summary>
        [DllImport("user32.dll")]
        public static extern IntPtr GetLastActivePopup(IntPtr hWnd);

        /// <summary>
        /// puts the thread that created the specified window into the foreground and activates the window. 
        /// </summary>
        [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
        public static extern bool SetForegroundWindow(IntPtr hWnd);
 

        #endregion
    }
}
